| abstract |
The present invention relates to a pharmaceutical or veterinary composition comprising a novel macrolide derivative, in particular a novel thylosin derivative, derivative of formula (IIa); Its preparation method; A method of treating and / or preventing a bacterial infection in an animal, comprising administering an effective amount of a compound, derivative or composition thereof; And to the use of derivatives for the manufacture of medicaments for the treatment and / or prevention of bacterial infections in animals. <Formula IIa> |